ISRO Photo and Signature Size: Varies by Advertisement

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ISRO has no single photo size: each advertisement sets its own. In ICRB advertisement 03 of 2026 the photo is a JPG of 100-200KB (200x230 px preferred) and the signature a JPG of 80-150KB (140x60 px preferred), while URSC advertisement 01:2026 allows up to 1MB for each. Read the upload section of your own advertisement before you resize anything.

ISRO photo and signature specs: two 2026 advertisements

Document	Format	File size (KB)	Dimensions	Other rules
Photo, ICRB 03(EMC) 2026	.jpg or .jpeg only	100-200KB	200x230 px preferred	Recent colour passport style, 4.5x3.5 cm, light or white background, no caps, hats or dark glasses
Signature, ICRB 03(EMC) 2026	.jpg or .jpeg only	80-150KB	140x60 px preferred	Black ink on white paper, not in capital letters
Photo, URSC 01:2026	.jpg or .jpeg only	Up to 1MB	200 to 500 px height and width	Recent colour passport size photo, not older than 6 months
Signature, URSC 01:2026	.jpg or .jpeg only	Up to 1MB	100-200 px high, 350-700 px wide	Scanned signature of the candidate

Source: ISRO ICRB advertisement ISRO:ICRB:03(EMC):2026 dated 27 August 2026 (applications closed 16 September 2026) and URSC advertisement URSC:01:2026 dated 21 March 2026, both on isro.gov.in. These are examples from past advertisements. Your advertisement may differ.

Try it here

Resizer set to the ICRB 2026 ranges

Photo 200 x 230 px at 100 to 200 KB, signature 140 x 60 px at 80 to 150 KB, JPG.

Runs in your browser. Your file never leaves your device. Open the full Resize Photo to 50 KB page

How the ICRB 2026 advertisement words the rules

ICRB advertisement ISRO:ICRB:03(EMC):2026 was dated 27 August 2026, and the online window ran from 27 August to 16 September 2026. Its section 10 says candidates must upload clear images of the photo and signature, and that applications will be rejected if they do not. Only the photo, the signature and the relevant supporting certificate (women, SC/ST/PwBD or ex-servicemen, as applicable) are uploaded with the application. Original documents are asked for later, when called for.

For the photo, the notice gives 4.5 x 3.5 cm as the passport style and asks you to avoid reflections on glasses so the eyes are clearly seen. It gives 200x230 px as the preferred size and a file between 100KB and 200KB. It also says the scanned image should not be more than 200KB, and suggests changing scanner DPI or colour settings if the file is too big.

How the URSC 2026 advertisement differs

URSC advertisement URSC:01:2026 was dated 21 March 2026 and closed on 12 April 2026. It sets ranges instead of one preferred size. The photo must be at least 200 x 200 px and at most 500 x 500 px, and the signature must be between 100 x 350 px and 200 x 700 px (height x width). Both are JPG or JPEG with a 1MB maximum. It also says an application with any image other than a recent colour photo or the candidate's scanned signature will be summarily rejected.

The lesson is simple: a file that suits one ISRO centre can fail at another. A 140x60 px signature that works for ICRB would be below the URSC minimum height of 100 px.

How to find the specs for your ISRO advertisement

1. Open isro.gov.in and go to Careers, then Current opportunities.
2. Open the page for your centre or advertisement number, for example ICRB or URSC.
3. Download the advertisement PDF.
4. Find the section on uploading documents, photo and signature.
5. Note the format, the KB range (some give a minimum as well as a maximum) and the pixel size.
6. Resize your files to those exact figures before you open the application form.

Prepare your photo and signature on your phone

Take a fresh colour photo against a plain light wall in even light, face straight on. Sign on white paper with a black ink pen, in small letters rather than all capitals, and photograph it flat. For a step-by-step on scanning, see our guide to scanning documents on your phone, and for other exams see the exam photo and signature size guide.

Then use the photo resizer to crop and set the pixel size and KB range, and the signature resizer to clean the scan and resize it. Zoom in on your phone to check the face and signature are clear.

Checklist before you upload

1. Photo is a colour .jpg or .jpeg within your advertisement's KB range.
2. If a minimum KB is given, the file is not below it.
3. Pixel size matches the preferred or required size.
4. Signature is black ink on white paper and not in capital letters.
5. No cap, hat or dark glasses in the photo.

Common mistakes with ISRO uploads

• Copying the size from another ISRO advertisement or another recruiter instead of your own.
• Compressing a photo below the minimum KB when the advertisement gives a range.
• Uploading a PNG when only JPG or JPEG is accepted.
• Signing in capital letters or with a thin pen that vanishes after compression.
• Uploading an old photo that breaks the age rule.

Tools for this

Frequently asked questions

Sources

• ISRO Careers page (checked 2026-10)
• ISRO ICRB advertisement 03(EMC) 2026, dated 27 Aug 2026 (Bilingual Advertisement) (checked 2026-10)
• ISRO URSC advertisement 01:2026, dated 21 Mar 2026 (checked 2026-10)

Rules and limits change. Always check the latest official notification or portal before you submit a form.